What of Eclipse project .metadata can I safely ignore in Git/Mercurial?

GitHub is maintaining a community “gitignore” project that catalogs suggested filespecs for ignores for various platforms, editors and languages: https://github.com/github/gitignore Eclipse ignores are here: https://github.com/github/gitignore/blob/master/Global/Eclipse.gitignore (If there are other filespecs that they should know about, let them know!)

What are the differences between plug-ins, features, and products in Eclipse RCP?

As the RCP tutorial details Plugins are the smallest deployable and installable software components of Eclipse. Each plugin can define extension-points which define possibilities for functionality contributions (code and non-code) by other plugins. Non-code functionality contributions can, for example, provide help content. The basis for this architecture is the runtime environment Equinox of Eclipse which … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)